Chapter 7, Problem 41CR

To determine

To Calculate: The percent of change as an increase or decrease.

Answer to Problem 41CR

The percent of change is an increase of $5\%$ .

Explanation of Solution

Given Information: Original amount is $40$ and the new amount is $42$ .

Formula Used:$Percentofchange,p\%=\frac{Amountofincreaseordecrease}{OriginalAmount}$

The new amount $42$ is greater than the original amount $40$ .

So, the amount of increase is $42-40=2.$

Therefore, percent of increase (as a decimal) $=\frac{2}{40}=0.05$

To write the decimal $0.05$ as a percent, move the decimal point $2$ places to the right and suffix a $\%$ sign.

So, write $0.05$ as $5\%.$

Therefore, the percent change is an increase of $5\%$.